Periphytic rotifers: A comprehensive study on species composition, substrate specificity and habitat preference down a tropical riverine system

Authors

  • Blessy John Post Graduate and Research Department of Zoology, Catholicate College, (Affiliated to Mahatma Gandhi University), Pathanamthitta- 689645, Kerala
  • R Sunil Kumar Post Graduate and Research Department of Zoology, Catholicate College, (Affiliated to Mahatma Gandhi University), Pathanamthitta- 689645, Kerala

Keywords:

Periphyton, Periyar, Substrate specificity, Rotifer

Abstract

The occurrence and distribution of periphytic rotifer assemblages from five different substrata in relation to physicochemical parameters were studied for one year (June 2016 – May 2017) along middle and lower stretches of the Periyar River, Kerala. Taxonomic studies revealed the presence of 63 species of periphytic rotifers belonging to 26 genera, 17 families, and 3 orders. Lecanidae was found to be the most abundant family followed by Colurellidae and Philodinidae. Canonical correspondence analysis elucidates the role of temperature, dissolved oxygen, phosphate, and nitrate in the distribution and abundance of rotifer families. Correspondence analysis illustrates the distribution of rotifers were mainly confined to leaves and roots. Principal component analysis marked the dominance of the pre-monsoon period contributed by the abundance of Lecanidae, Colurellidae, and Philodinidae families. The study came out with some important baseline information regarding the species composition, substrate specificity, and regional preference of periphytic rotifers in relation to the environmental parameters from the river Periyar.

Downloads

Published

2021-09-12

How to Cite

John, B., & Kumar, R. S. (2021). Periphytic rotifers: A comprehensive study on species composition, substrate specificity and habitat preference down a tropical riverine system. Macedonian Journal of Ecology and Environment, 23(1), 5–16. Retrieved from https://mjee.org.mk/index.php/mjee/article/view/169